(877) 449-1281

Mountain Ave Self Storage 2

112 South Mountain Avenue , Ontario , CA 91762 (877) 449-1281
Book Now

We are experiencing high demand in this area.
Make sure you reserve a unit for free today to hold a storage space.

  • 5' x 7'

    5' x 7' Unit

    2nd Floor, Interior

    1st 4 Months 25% off

    Discount Price

  • 4' x 10'

    4' x 10' Unit

    2nd Floor, Interior

    Discount Price

  • 5' x 10'

    5' x 10' Unit

    2nd Floor, Interior

    3 Full Months 1/2 OFF

    Discount Price

  • 5' x 10'

    5' x 10' Unit

    1st Floor, Drive Up Access, Roll Up Door

    2 Full Months 1/2 Off

    Discount Price

  • 5' x 12'

    5' x 12' Unit

    2nd Floor, Interior

    Discount Price

  • 7' x 10'

    7' x 10' Unit

    2nd Floor, Interior

    1st 4 Months 25% off

    Discount Price

  • 10' x 10'

    10' x 10' Unit

    2nd Floor, Interior

    3 Full Months 1/2 OFF

    Discount Price

  • 10' x 15'

    10' x 15' Unit

    1st Floor, Drive Up Access, Household and Vehicle Storage Allowed

    3 Full Months 1/2 OFF

    Discount Price

  • 10' x 20'

    10' x 20' Unit

    1st Floor, Drive Up Access, Household and Vehicle Storage Allowed

    Discount Price

  • 15' x 25'

    15' x 25' Unit

    1st Floor, Drive Up Access, Household and Vehicle Storage Allowed

    Discount Price


How it works

Reserve 1

Reserve your
storage unit for free

Facility 2

Visit the facility to finalize the rental

Move 3


Operating Hours


Sun 9:00 am - 5:45 pm
Mon 9:00 am - 5:45 pm
Tue 9:00 am - 5:45 pm
Wed 9:00 am - 5:45 pm
Thu 9:00 am - 5:45 pm
Fri 9:00 am - 5:45 pm
Sat 9:00 am - 5:45 pm

Unit Access

Sun 6:00 am - 9:00 pm
Mon 6:00 am - 9:00 pm
Tue 6:00 am - 9:00 pm
Wed 6:00 am - 9:00 pm
Thu 6:00 am - 9:00 pm
Fri 6:00 am - 9:00 pm
Sat 6:00 am - 9:00 pm

Features and Amenities

  • Elevator available
  • Fenced and lighted
  • Video cameras on site
  • Electronic gate access
  • Vehicle requires title
  • Handcarts available
  • Moving supplies for sale
  • Manager lives on-site
  • Spanish speakers on staff
  • Email billing available
  • Rent due on same day each month per lease start
  • Auto-pay available
  • Vehicle must be running
  • Vehicle requires registration
  • Insurance required
  • Homeowners/renters insurance accepted
  • Cash accepted
  • Checks accepted
  • Credit cards accepted (Visa, Mastercard, AMEX, Discover)

Additional information

Mountain Ave Self Storage is a family owned and operated business located in Ontario, CA. We take pride in our state of the art security, high level of cleanliness, convenient hours, and excellent customer service. Taking care of our customers is our top priority. We'd love to earn your business! Check us out!

Customer Reviews

  • 4.0 of 5 stars


    April 29th, 2020

    Friendly staff, very good deals.

    Very friendly staff and very good pricing on units.

  • 4.0 of 5 stars

    David Padilla

    December 25th, 2019

    Convenient hours, helpful staff

    This place is clean and has a ton of security cameras. I feel safe storing my stuff here. The staff is helpful and always around.

  • 5.0 of 5 stars


    December 16th, 2019

    Very organized, clean and affordable.

    The staff at this facility is very polite. The facility is very clean and very organized.

  • 4.5 of 5 stars


    October 25th, 2019

    Nice place to store stuff.

    Nice place, helpful costumer service.

  • 5.0 of 5 stars


    June 4th, 2019

    First time storage

    This is my first time using a storage unit and it went so smooth. I appreciate the help from the lovely ladies at the front desk

  • 5.0 of 5 stars


    April 7th, 2019

    Best price friendly staff

    A+++ very nice staff. Clean facility

  • 4.0 of 5 stars


    February 4th, 2019

    Good Place

    Good Place. I Put My Stuff On Second Stor5y With No Problems Getting To My Storage.

  • 4.5 of 5 stars


    January 1st, 2019

    Very friendly and great customer service.

    Attendant was very kind . Loved the rate I got on my unit and most of all the way their service makes u feel safe and secure .. no need to be worry bought ur property .. grounds we're very clean .ND storage areas aswell.

  • 5.0 of 5 stars


    October 17th, 2018


    Very impressed with the prices, staff as well as the overall appearance of the storage

  • 3.5 of 5 stars


    September 24th, 2018

    Quick service

    Margarita was amazing super helpful!

  • 3.5 of 5 stars


    July 16th, 2018

    Great Service Safe Location

    We received friendly courteous service and I feel the location is safe!!

  • 3.0 of 5 stars


    September 11th, 2016


    Great customer service............

  • 4.0 of 5 stars

    Norma Ruelas

    July 2nd, 2016

    Great prices

    Great service I would recommend this place to anyone😂

  • 3.0 of 5 stars


    June 14th, 2016

    Limited access hours

    The unit seemed fine. Clean. Very secure lot. The person working was very helpful. She even stayed late to help me move in. My only complaint is the hours. You only have access until 5:45pm which is a problem.

  • 4.0 of 5 stars


    March 23rd, 2016

    Like the easy access 7 days per week

  • 4.0 of 5 stars


    February 23rd, 2016

    Freindly staff and great prices

    Paula was very friendly and accommodating as well as attentive to our needs for storage. She sold me as well as the facilities itself.

  • 5.0 of 5 stars

    Sandy Replogle

    July 7th, 2015

    Great service!

    The storage area was absolutely perfect for what we needed. The staff was far more helpful than I expected, and very nice as well. I'm very pleased with it overall.

  • 5.0 of 5 stars


    June 10th, 2015

    Great Service!

    The paperwork was minimal and easy, managers were easy to work with and super-nice. The property seems to be well maintained and very clean and secure. Captain's proactively contacted me when they noticed I had not locked my unit properly, as well as secured it for me in the mean-time. Great overall experience, highly recommend.

  • 3.0 of 5 stars


    May 21st, 2015

    It's a fairly cheap storage option that gives you value for your money. The discounts are helpful if you are tight on cash. It would be nice if the unit was accessible 24/7

  • 4.0 of 5 stars


    December 27th, 2014

    Good for the money

    I rent a 2nd floor storage locker from them. I was worried i would have to lug all my stuff up a set of stairs. Turns out thankfully they have an elevator. Works for me. When they say 5x10... they mean 5x10. A queen size mattress is 5 feet wide. It is a very tight fit to squeeze in there around the studs of the wall. I recently moved here with a 22 foot moving truck filled to the brim. After two days sorting everything out, figuring out what was going to storage, turns out a 5x10 fits most of our stuff. We made other plans for our bulkier items that we dont need.

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